Centrifugal separator or the like



Oct. 1, 1929. A. c. BAMFORD 1,729,758

CENTRIFUGAL SEPARATOR OR THE LIKE Filed Dec. 2, 1925 2 Sheets-Sheet l Oct. 1, 1929.

' A. c. BAMFORD 1,729,758

CENTRIFUGAL SEPARATOR OR THE LIKE Filed Dec. 2, 1925 2 Sheets-Sheet 2 lira/PIVEYJ.

Patented Oct. 1, 1929 I 1,729,758

umrnn stares earner ALFRED CHADBURN BAMFORD, OF NEVR BRIGHTDN, EJZIGLJF'LND, AS$IGNOR TO THE DE LAVAL SEPARATOR COMIPANY, 01E NEVT YORK, N, Y., A CORPORATION 033 NEW JERSEY CENTRIFUG-AL SEl-ABATOE R LIKE Application filed December 2, 1925, Serial No. 72,655, and in Great Britain December 10, 1324-.

This invention relates to centrifugal sepbetween the extremities c of the arms of a arators or the like for separating solids from yoke (Z in such a manner that the bowl, when fluids or fluids from fluids of different specific lifted out of the supporting vessel or cup 0 gravitiea free to he swung about such pivots to an The bj t f th Present invention is to inverted position so as to empty it of the 001- 55 provide improvements in such machines by lected separated solids or impurities. The which the removal of the bowl and the dispivots b about which the bowl may be swung charge from it of the separated matters and to an inverted position are screws 7), which, by the necessary cleaning operations can be their knurled heads, as shown Fig. 2, may 10 quickly and easily effected. be turned to screw them into the sockets iii 00 This quick and easy manipulation of the the bowl when it is desired to raise the bowl, bowl is especially important in connection or may be turned in the opposite direction to with centrifuges used for the separation of screw them out of the bowl sockets to permit impurities from oil used for the lubrication rotation of the bowl when in the operative systems of engines or machinery where the position.

lubricating oil which is in continuous circu- The lifting mechanism in the present exlation is passed through one or more centrifuample comprises a spindle f which is threadgal oil purifiers for the purpose of keeping ed as'at g and upon the upper end of which the oil constantly clean and pure. In such is mounted the yoke (Z. lihis spindle f is 20 cases and with the conventional form of censlidably fitted in a'braclret 7b which is bolted trifugal purifier the removal of each bowl to the frame 2' of the separator and such for cleaning and its replacement after cleanspindle is prevented from rotating by the ening entails a considerable amountof time gagen'ient between stud '7' or its equivalent and labour as besides being heavy the bowls and l n it di l {groove '7 i th lower d 25 are frequently too hot to handle'with the of the spindle. lhe upward movement of bare hands. i the spindle is limited by a stop in the form of The present invention consists broadly in a ll Z on th i dl P i g gf fi l fi with The means illustrated for moving the chanical means for llfting their bowls out of dl comprlge a t i th f f a and into the normal posltlon. bevel pinion m engaging the threaded por- According to one embodiment of the in tion of the spindle, said nut being rotated by vention the bowl is pivotally mounted means of a handle a through the medium of tween the arms of a yoke the arrangc a further bevel pinion 0 which meshes with ing such' that the mechanical lifting means th b l i io i operate to raise bodily both the yoke and the 11; ill th b Seen th t. b t ti th rt d bowl, and when in the elevated pohandle a the nut m is rotated to cause the sition the bowl and the yoke together are spindle to be raised or lowered and with it free to be swung about a horiz n Plane the yoke (Z and bowl a. Normally the yoke d whilst H163 bOWl is. free t0 be turned inde- 111a be fixedly secured to the f by 40 p nd tly ilbOut its piv wfl g t0 means of a clamping screw p but when the g0 facilitate the cleaning operation. bowl is raised clear of its supporting vessel In order that the invention may be clearly or cup 6 the clamping screw may be slackened understood such an embodiment will now be off so as to permit the yoke with the bowl to be described by aid of the accompanying drawswung round in a horizontal plane when the 45 ing in which Fig. 1 is a fragmentary elevabowl is free to be inverted for cleaning.

tion of a centrifugal separator with one form It is to be understood that the present inof lifting gear for the bowl applied thereto. vention is not limited to the particular means Fig. 2 is a perspective View of the same. illustrated for lifting the bowl as any other In the arrangement illustrated the bowl a suitable means for this purpose may be em- 50 of the separator is pivotally mounted as at Z) 'ployed. For example the bowl maybe lifted by means of a lever or steam, air, or hydraulic rams in lieu of the bevel gear illustrated and the term mechanical means employed in the claims is to be construed as including such devices.

Further any convenient system of counterbalancing the weight of the bowl may be used such for example as counter-balancing wheels, springs or weights.

In practice the yoke and the lifting gear may be enclosed by a hood or cover.

To enable the ring of the bowl to be undone with its spanner it is usual to lock the bowl in position by means of two bolts. The design illustrated lends itself to the provision of alternative and more satisfactory means for this purpose. These means are illustrated in Fig. 2 and comprise extensions 0 on the yoke arms below the pivots b which when the bowl is lowered are adapted to fit in slots 6 in the neck of the bowl rccptacle or cup 6.

What I claim and desire to secure by Letters Patent is 1. In a centrifugal separator, the combination, with the bowl, of a supporting receptacle, diametrically opposite recesses in the neck of the receptacle, vertically movable arms by and between which the bowl is supported, and extensions on said arms adapted to fit in said recesses.

2. In a centrifugal separator, the combination with the bowl, of two bowl supports, one adapted to support the bowl in operative position, the other comprising a yoke, means supporting the central part of the yoke and on which the yoke is swingable laterally and which is movable vertically to lift the yoke bodily to raise the bowl away from the first support, the bowl being mounted on a horizontal axis between the ends of the yoke arms to permit it to be inverted after the bowl is lifted.

3. In a centrifugal separator, the combination, with the centrifugal bowl, of two bowl supports, one adapted to support the bowl during operation and the other being vertically and laterally movable, and means to prevent lateral movement of the second sup port during its vertical movement so that the bowl may be moved vertically with its axis maintained in line with the axis of the first support, said means being releasable to permit lateral movement of the support to enable the bowl to be swung laterally after it is raised.

4. In a centrifugal separator, the combination, with the centrifugal bowl, of two bowl supports, one adapted to support the bowl during operation and the other being vertically and laterally movable, means to prevent lateral movement of the second support during its vertical movement so that the bowl may be moved vertically with its axis maintained in line with the axis of the first support, said means being releasable to permit lateral movement of the support to enable the bowl to be swung laterally after it is raised, and means to lock the second support after it and the bowl have been swung laterally to bring the bowl out of vertical alignment with the first support.

5. In a centrifugal separator, the combination, with the centrifugal bowl, of two bowl supports, one adapted to support the bowl during operation and the other being vertically and laterally movable, and means to prevent lateral movement of the second support during its vertical movement so that the bowl may be moved vertically with its axis maintained in line with the axis of the first support, said means being releasable to permit lateral movement of the support to enable the bowl to be swung laterally after it raised, the second support comprising trunnions engaging the bowl at the opposite ends of one of its diameters.

G. In a centrifugal separator, the combination, with the centrifugal bowl, of two bowl supports, one adapted to support the bowl during operation and the other being vertically and laterally movable, means to prevent lateral movement of the second support during its vertical movement so that the bowl may be moved vertically with its axis maintained in line with the axis of the first support, said means being releasable to permit lateral movement of the support to enable the bowl to be swung laterally after it is raised, the second support comprising trunnions engaging the bowl at the opposite ends of one of its diameters, and means to lock the second support after it and the bowl have been swung laterally to move the bowl out of vertical alignment with the first support.

7. In a centrifugal separator, the combination, with the bowl, of means to move the bowl both vertically and horizontally, and means to rigidly restrain the bowl against horizontal movement during its vertical movement, said means being releasable to permit said horizontal movement.

8. In a centrifugal separator, the combination, with the bowl, of a bowl supporting yoke, turnable about a vertical. axis so as to position the bowl either in vertical alignment with its operating position or in position for cleaning, manually releasable means to lock the yoke in each position, and means to move the yoke vertically while it is locked in the first specified position.

In witness whereof I afiix my signature at Liverpool, England, on Nov. 17th, 1925.

ALFRED CHADBURN BAMFORD. 

